A method for a base station can create a subframe structure used in communication between the base station and a UE. The subframe structure can include a plurality of subframes each having a subframe duration. The method can include operating a serving cell on a carrier frequency. The method can include performing a LBT on the carrier frequency for a time duration that at least partially overlaps a terminal portion of a subframe duration of a first subframe of the plurality of subframes. The method can include determining a position of a starting OFDM symbol for transmitting a control channel in a second subframe of the plurality of subframes based on the time duration of the LBT. The subframe duration of the second subframe can occur immediately after the subframe duration of the first subframe.
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5. The method according to claim 4, wherein the first portion occurs during a terminal portion of the first subframe and during at least a second portion of a second subframe, the second portion occurring during a beginning portion of the second subframe.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
March 31, 2020
November 15, 2022
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